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21kW Greenstar 4000 System Gas Boiler - Worcester Bosch (White) – 7733600383

21kW Greenstar 4000 System Gas Boiler - Worcester Bosch (White) – 7733600383

SKU: 7733600385 Part Number: 7733600383
Regular price £1,149.36 Ex. VAT
Sale price £1,149.36Ex. VAT
Regular price £1,199.36
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Product Description

7733600383 | Worcester Bosch Greenstar 4000 21kW System Gas Boiler (White)

The Worcester Bosch Greenstar 4000 21kW is a compact and quiet system boiler ideal for medium-sized homes. With a 21kW central heating output, it efficiently supplies heat for properties with up to 15 radiators and a separate hot water cylinder. This model features a sleek modern design, an intuitive full-colour display, and is compatible with Bosch EasyControl for smart home integration. Up to a 10-year guarantee is available when installed with a Greenstar System Filter by a Worcester Accredited Installer.

  • 21kW output supports heating needs for medium-sized properties
  • Full-colour LCD text display for user-friendly control
  • Exceptionally quiet operation for enhanced comfort
  • Compatible with Bosch EasyControl smart thermostat
  • ErP A-rated for high energy efficiency and low emissions

Technical Specification

depth 310 mm
guarantee 10 Years
height 724 mm
heights 724 mm
length 310 mm
lengths 310 mm
model Greenstar 4000 21kW
pack size 1
range Greenstar 4000
supplier part number 7733600383
type System Boiler
volume 89936 ml
volumes 89936 ml
width 400 mm
widths 400 mm
boiler system Sealed System – Requires separate hot water cylinder
color pattern White
energy efficiency class ErP Class A (Heating)
material Steel, Aluminum, and Brass
mounting type Wall-Mounted
power source Natural gas